 How do I remove the small rubber valve seals?, These seal the valve to the guide |
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| Bob Wolcott |
 Jun 18 2005, 03:48 PM
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#1
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Member  Group: Members Posts: 85 Joined: 18-May 05 From: McMinnville, OR Member No.: 4,096  |
Is there a special tool required for removing the small rubber seals that seal the valve step at the top of the valve guide? What is the best procedure for this?
Thanks, Bob |
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| type47 |
Jun 18 2005, 08:44 PM
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#2
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Viermeister Group: Members Posts: 4,254 Joined: 7-August 03 From: Vienna, VA Member No.: 994 Region Association: MidAtlantic Region |
??? wow, i must have missed that one, are there rubber seals? there is a valve removing tool/jig to allow one to remove the springs. there are split keepers at the top of the valve stem and the jig compresses the spring to allow the keepers to be removed.
are you talking about type IV? |
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| Bob Wolcott |
Jun 18 2005, 10:00 PM
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#3
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Member Group: Members Posts: 85 Joined: 18-May 05 From: McMinnville, OR Member No.: 4,096 |
It is an early 911 head and it looks like the seal is retained by a collar or something. Here is a picture
http://oregonstate.edu/~wolcottr/Porsche/H...ad/DSCF0005.JPG Bob |
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| ejm |
Jun 19 2005, 05:18 AM
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#4
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I can see the light at the end of the tunnel Group: Members Posts: 2,692 Joined: 3-February 03 From: Massachusetts Member No.: 224 Region Association: None |
The seal and metal ring is one piece and just pressed onto the guide. I've seen special removal tools but you can just carefully pry them off. To install new ones you'll need a drift something like this.
Attached image(s) 
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| TimT |
Jun 19 2005, 07:31 AM
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#5
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retired Group: Members Posts: 4,033 Joined: 18-February 03 From: Wantagh, NY Member No.: 313 |
Yes you can just pry them off woth a screwdriver, yo install use a 13mm socket and extension and tap them on.
The seal pictured is the old style seal, a bakelite sleeve w/oring. The new style is teflon. There is debate which is the better seal, some claim the teflon doenst allow enough oil to the valve stems. I have used the teflon style on my engines, annd the seem to work fine. The teflon seal will not be included in a typical gasket kit. If you decide to go with the newer tech teflon seals you will need to purchase them seperately. |
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| Bob Wolcott |
Jun 19 2005, 09:24 AM
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#6
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Member Group: Members Posts: 85 Joined: 18-May 05 From: McMinnville, OR Member No.: 4,096 |
Are these seals something that can be reused? I want to remove them when I clean the heads but they all appear to be in good condition.
Bob |
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